Home / 805,324.50-1,111,355.28-442,750.89

Finding the Fourth Proportional to 805,324.50, 1,111,355.28 and 442,750.89

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Solution

The fourth proportional to 805,324.50, 1,111,355.28 and 442,750.89 is: 611,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,324.50 : 1,111,355.28 = 442,750.89 : x
  2. Step 2: Convert to fraction form
    805,324.50/1,111,355.28 = 442,750.89/x
  3. Step 3: Cross multiply
    805,324.50x = 1,111,355.28 × 442,750.89
  4. Step 4: Simplify right side
    805,324.50x = 492,053,539,326.20
  5. Step 5: Solve for x
    x = 492,053,539,326.20/805,324.50
  6. Step 6: Final answer
    x = 611,000.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.